1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
atroni [7]
2 years ago
10

Help me please ┐(‘~`;)┌​

Chemistry
2 answers:
slava [35]2 years ago
8 0

Answer: (2)react completely in the reaction

limiting reactant determines the number of moles in a chemical reaction

excess reactant is the reactant with an excess number of moles

Helga [31]2 years ago
4 0

Answer:

<h3>Limiting reagent in chemical reaction is that reactant which <em><u>Left some amount unreacted after the completion of reaction</u></em><em><u>.</u></em></h3>
You might be interested in
The radioactive substance cesium-137 has a half-life of 30 years. The amount At (in grams) of a sample of cesium-137 remaining a
stealth61 [152]

<u>Answer:</u> The amount of sample left after 20 years is 288.522 g and after 50 years is 144.26 g

<u>Explanation:</u>

We are given a function that calculates the amount of sample remaining after 't' years, which is:

A_t(t)=458\times (\frac{1}{2})^{\frac{t}{30}

  • <u>For t = 20 years</u>

Putting values in above equation:

A_t(t)=458\times (\frac{1}{2})^{\frac{20}{30}

A_t(t)=288.522g

Hence, the amount of sample left after 20 years is 288.522 g

  • <u>For t = 50 years</u>

Putting values in above equation:

A_t(t)=458\times (\frac{1}{2})^{\frac{50}{30}

A_t(t)=144.26g

Hence, the amount of sample left after 50 years is 144.26 g

6 0
3 years ago
The coolest stars in the sky are ____ in color
Mekhanik [1.2K]
Red is the answer in the blank
4 0
2 years ago
Read 2 more answers
Using the equation below, if you have 4.3 mol of nitrogen tribromide and
ankoles [38]

Answer:

sodium hydroxide is the limiting reactant

Explanation:

The first step is usually to put down the balanced reaction equation. This is the first thing to do when solving any problem related to stoichiometry. The balanced reaction equation serves as a guide during the solution.

2NBr3 + 3NaOH = N2 + 3NaBr + 3HOBr

Let us pick nitrogen gas as our product of interest. Any of the reactants that gives a lower number of moles of nitrogen gas is the limiting reactant.

For nitrogen tribromide

From the balanced reaction equation;

2 moles of nitrogen tribromide yields 1 mole of nitrogen gas

4.3 moles of nitrogen tribromide will yield 4.3 ×1/ 2 = 2.15 moles of nitrogen gas

For sodium hydroxide;

3 moles of sodium hydroxide yields 1 mole of nitrogen gas

5.9 moles of sodium hydroxide yields 5.9 × 1/ 3= 1.97 moles of nitrogen gas

Therefore, sodium hydroxide is the limiting reactant.

8 0
2 years ago
How does a planet’s motion affect its length of day and year? <br> PLEASEEEE HELPPPP!!!!
Tom [10]

the time it take for a planet to rotate on its axis makes up its day so if it were slower the day would be longer like earth, it take about 24 hours to make one full rotation.

Now for a year the distance from its star is the largest factor, because the further out the longer it takes to revolve around it, thus making a longer year.

8 0
3 years ago
Read 2 more answers
Please help on 44. /45./ 46./47,
Aleonysh [2.5K]
The only one that I can do without google is 47. Sorry that I can't answer the others. The answer to 47 is this: you know that the western side of the hill has the steepest slope because the ovals showing altitude are way closer together. The closer the circles/ovals are, the steeper the slope is.

Sorry if this doesn't help much, but I answered what I could without cheating.

Foxeslair
4 0
3 years ago
Other questions:
  • Write the correct answers.
    5·1 answer
  • Which of these mixtures will MOST LIKELY result in soil? A) sand, clay, and heat B) sand, clay, and water C) sand, clay, heat, a
    6·2 answers
  • I WILL RATE BRAINLIEST! I JUST NEED HELP!
    7·2 answers
  • This part of the plant cell turns sunlight into food. It is called a
    5·2 answers
  • What is the difference between breccia rock and conglomerate rock
    15·1 answer
  • When the equation for the combustion of ethane, C2H6, is correctly balanced, the coefficient on oxygen is:
    13·1 answer
  • Vhat is the molarity of an Nal solution that contains 7.0 g of Nal in 23.0 mL of solution?
    11·1 answer
  • Minerals are part of the Geosphere, which is composed of several layers.<br> O True<br> O False
    13·2 answers
  • What type of rock is limestone? Describe how a limestone rock is likely to change over a long period of time.
    15·1 answer
  • What is the percent composition of N H S O in (NH4)2SO4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!